Maximizing Peanut Oil Yield: Pressing vs Solvent Extraction Explained

QIE

2026-02-18

Solution

Learn how to maximize peanut oil yield with QIE Group's customized solutions. Explore small-scale aromatic pressing and large-scale pre-press & solvent extraction to boost efficiency, reduce residual oil ≤0.5%, and preserve rich flavor.

Peanut oil is highly valued for its rich aroma and nutritional benefits, making it one of the most sought-after premium edible oils. With rising raw material costs and growing market competition, producers face a key challenge: how to maximize oil yield while maintaining the natural flavor of peanut oil.

QIE Group, with over 40 years of experience in edible oil engineering, offers two tailored production solutions that help businesses balance flavor retention and production efficiency.

Small-Scale Aromatic Pressing Line: High-End Flavor Focus

Designed for producers targeting high-end markets where flavor and quality are critical, the small-scale aromatic pressing line preserves the natural aroma of peanuts while optimizing oil yield.

Equipment for cleaning raw peanuts used in an edible oil production line to remove impurities before pressing or extraction.

Production Process

Raw Material Cleaning: Advanced screening and magnetic separation remove impurities, stones, and metals, ensuring safe operation of the press.
Crushing: Optimized particle size allows peanuts to release oil efficiently, preparing them for roasting.
High-Temperature Roasting (~150°C): Enhances peanut aroma while improving pressability.
Screw Oil Pressing: Efficient extraction increases oil yield by 3–5%.
Cold Filtration / Degumming: Low-temperature, high-precision filtration removes suspended solids while preserving vitamin E and active nutrients.
Packaging: Ready-to-market premium peanut oil.

Key Advantages

Rich Aroma: High-temperature roasting combined with precision screw pressing enhances peanut flavor.
Higher Oil Yield: Residual cake oil reduced compared to traditional presses.
Nutrient Retention: Natural vitamin E and antioxidants preserved.
Moderate Investment: Small-scale equipment requires less space and is flexible to operate.

Ideal For: Premium peanut oil producers seeking high added value and exceptional flavor.

Large-Scale Pre-Press & Solvent Extraction Line: High Efficiency & Cost-Effective

For large-scale and cost-sensitive producers, the pre-press & solvent extraction line provides high efficiency and consistent production, ensuring low residual oil and energy optimization.

Production Process

Raw Material Cleaning: Same as small-scale line for purity and safety.
Crushing: Optimized particle size for pre-press and solvent extraction.
Roasting (~120°C): Moderate temperature reduces energy consumption and preserves part of the natural aroma.
Pre-Pressing: Initial oil extraction with screw press reduces load for solvent extraction.
Solvent Extraction: Residual oil is extracted efficiently, achieving ≤0.5% residual oil.
Mixed Oil De-Solventizing: High-efficiency solvent recovery; solvent consumption ≤1.5 kg/t.
Refining: Degumming, deacidification, decolorization, deodorization ensure safe, stable oil.
Finished Product Output: Large-scale, market-ready peanut oil.

Key Advantages

High Oil Yield: Increases over 5% compared to single pressing.
Energy Saving: Refining energy reduced by 10–15% via heat recovery.
Flexible Process: Supports hot pressing, cold pressing, and pre-press modes.
Economic Return: Large-scale design reduces unit production cost and boosts efficiency.

Ideal For: Industrial peanut oil producers requiring high output, low residual oil, and cost-effective production.

Core Parameter Comparison

Parameter	Small-Scale Aromatic Pressing Line	Large-Scale Pre-Press & Solvent Extraction Line
Focus	Extreme flavor, high added value	Scale efficiency, low residual oil, low energy
Residual Oil	Cake 5–7%	≤0.5% after extraction
Main Products	Aromatic peanut oil, premium peanut cake	Grade A/B peanut oil, defatted peanut meal
Oil Yield Improvement	+3%	+5%+
Energy / Solvent	Optimized thermal cycle, 10% electricity saved	Solvent ≤1.5kg/t

QIE Group Engineering Advantages

Expertise: Over 40 years in edible oil engineering; skilled in raw material characteristics and process optimization.
End-to-End Customization: Full design from cleaning, roasting, pressing, extraction to refining and packaging.
Energy & Environmental Efficiency: Heat recovery and solvent recycling reduce energy consumption and environmental impact.
High Conversion Rates: Optimized processes and equipment upgrades maximize oil yield.
Proven Track Record: Successfully delivered multiple full-line solutions for peanut oil producers, ensuring consistent production and high-quality output.

How to Choose the Right Production Line

Flavor & Premium Market Priority: Small-scale aromatic pressing line.
High Yield & Cost Efficiency Priority: Large-scale pre-press & solvent extraction line.
Diversified Products & Flexible Market Needs: Use a system that switches between hot, cold, and pre-press modes.

Investment Note:

Small-scale line: lower upfront cost, flexible operation.
Large-scale line: higher initial investment, lower unit cost, faster ROI.

Workshop for refining peanut oil, including the processes of degumming, deacidification, bleaching, and deodorization.

FAQ

Q1: How can I increase peanut oil yield?

A: Optimize roasting temperature, crushing particle size, screw press parameters, and residual oil extraction to achieve 3–5% higher yield.

Q2: Which is better, pressing or solvent extraction?

A: Pressing preserves flavor for premium products; solvent extraction maximizes yield and minimizes residual oil for industrial scale.

Q3: How to save energy in peanut oil production?

A: Use heat recycling, residual steam recovery, and high-efficiency solvent recovery to reduce energy consumption by 10–15%.

Q4: Does QIE Group provide complete turnkey solutions?

A: Yes, we offers full engineering support, from process design and equipment selection to installation, commissioning, and training.

Looking to maximize your peanut oil yield and preserve rich flavor?

In modern peanut oil production, flavor and yield are key competitive factors. QIE Group's two customized production solutions enable producers to retain rich peanut aroma while maximizing production efficiency and economic return.

Contact QIE Group for your custom peanut oil solution

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